Apparatuses, system and methods for forming pressed articles and pressed articles formed thereby

US20140141961A1Active Publication Date: 2014-05-22MASS

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[0147]According to the invention the system 10 for forming pressed articles by pressing powder or granules comprises:

[0148]a powder discharge assembly 12;

[0149]a no-cavity press assembly 20 including:

[0150]an bottom plate 22 that is substantially the same size or greater than the pressed article,

[0151]a constraining means to isolate a portion of powder,

[0152]a top punch 24; and

[0153]a conveyor 14 to transport the powder.

1. Custom Design Vibrating Feeder / Power Discharge Assembly / Vibrating Feeding Means

[0154]In a preferred embodiment of the present system, the power discharge assembly 12 comprises a vibrating feeder such as hopper which is filled with granulated fly ash or other ceramic compositions. The exit of the feeder is fitted with oscillating combs 46 through which the powered and granulated material falls homogenously on to the belt or any other kind of conveyor 14. These combs move parallel to each other to preventing agglomeration of granulated fly ash mixture.

[0155]A unique...

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Abstract

The invention relates to a method and a system (10) for forming pressed articles by pressing powder or granules, the system comprising the following apparatuses: a powder discharge assembly (12); a no-cavity press assembly (20) including: an bottom plate (22) that is the same size or greater than the pressed articles, a constraining means to isolate a portion of powder, and a top punch (24); and a conveyor (14) to transport the powder and / or pressed articles.

Description

TECHNICAL FIELD OF THE INVENTION[0001]The present invention relates to apparatuses, system and method for pressing powder, particularly to shaping floor and wall ceramic tiles from compositions containing fly ash.BACKGROUND OF THE INVENTION[0002]Ceramic powders are typically formed into tiles and other pressed articles by depositing spray dried clay based powder into a cavity where it is pressed into a compressed shape. This is known in the art as dry forming. The powder is deposited into the cavity by many different methods including conveyor, single batch hoppers, and multiple batch hoppers.[0003]The charging hopper, which is typically used, is a vibrating funnel-shaped delivery vessel that deposits spray dried granules into a cavity either directly, or onto a single-batch measured volume delivery tray. In each deposition, the spray dried granules in the hopper are shaken down to the bottom of the hopper adjacent to the hopper exit door. When deposition occurs, the hopper is opene...

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Application Information

Patent Timeline

22 May 2014

Publication

US20140141961A1

IPC: C04B18/08; C04B33/00

CPC: B28B3/02; B28B3/123; B28B5/021; B28B13/0205; B28B13/022; B28B13/029; B30B11/027; B30B11/14

Inventors: KOSZO, SANDOR; BARDELLI, LODOVICO